Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2016JD025287 |
Exploring the effects of a nonhydrostatic dynamical core in high-resolution aquaplanet simulations | |
Yang, Qing1; Leung, L. Ruby1; Lu, Jian1; Lin, Yuh-Lang2; Hagos, Samson1; Sakaguchi, Koichi1; Gao, Yang1,3 | |
2017-03-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
![]() |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2017 |
卷号 | 122期号:6 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Peoples R China |
英文摘要 | This study explores the impact of a nonhydrostatic dynamical core in high-resolution regional climate simulations using an aquaplanet framework. The Weather Research and Forecasting (WRF) model is used to conduct simulations with both hydrostatic (H) and nonhydrostatic (NH) solvers at horizontal grid spacings (x) of 36, 12, and 4km. The differences between the H and NH simulated precipitation (P) are notable even at x=12km in the intertropical convergence zone and the transition region to the drier subtropics. At gray zone grid spacing (12km and 4km) over the tropics, P is sensitive to whether a cumulus parameterization scheme is used or not. With an idealized Witch of Agnesi land mountain, differences in the precipitation and circulation (vertical velocity) between the H and NH simulations are significant even at x=36km in the tropics due largely to the strong feedbacks related to moist processes. The differences increase as the model grid spacing and mountain half width (a) are reduced, accompanied by a shift toward a more nonhydrostatic flow regime at a=24km. Latent heat release drastically enhances the differences between the NH and H simulations and extends the effect of nonhydrostatic dynamics to a broader region over the mountain and downstream over the tropics. Overall, differences exist between H and NH simulations even at resolutions between 12 and 36km, but the differences are sensitive to the representations of moist physics and other features such as horizontal diffusion used in the WRF model. |
英文关键词 | nonhydrostatic dynamics latent heating nonhydrostatic dynamical cores hydrostatic dynamical cores hydrostatic resolution limit orographic effect |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000399655200005 |
WOS关键词 | ATMOSPHERIC MODEL ; PRECIPITATION ; MOIST ; FRAMEWORK |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/34131 |
专题 | 气候变化 |
作者单位 | 1.Pacific Northwest Natl Lab, Richland, WA 99354 USA; 2.North Carolina Agr & Tech State Univ, Greensboro, NC USA; 3.Ocean Univ China, Coll Environm Sci & Engn, Qingdao, Shandong, Peoples R China |
推荐引用方式 GB/T 7714 | Yang, Qing,Leung, L. Ruby,Lu, Jian,et al. Exploring the effects of a nonhydrostatic dynamical core in high-resolution aquaplanet simulations[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017,122(6). |
APA | Yang, Qing.,Leung, L. Ruby.,Lu, Jian.,Lin, Yuh-Lang.,Hagos, Samson.,...&Gao, Yang.(2017).Exploring the effects of a nonhydrostatic dynamical core in high-resolution aquaplanet simulations.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,122(6). |
MLA | Yang, Qing,et al."Exploring the effects of a nonhydrostatic dynamical core in high-resolution aquaplanet simulations".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 122.6(2017). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论